Abstract:
A field experiment was conducted during the Rabi season 2007-08 to find out
the optimum and economically viable fertilizer dose of mustard varieties:
I3ARI sharisa-9, HART sharisa-12 and BARI sharisa-15. A total of 5 treatments
including one control comprising different dose of' chemical fertilizers were
used in the studs. The treatments were F
1
(N11 +P;c
I S25 -Z
( N
91 FP30± I(40+ S2(1+Z111+
B1
N30+P,0
± K,0- S
1(j
+7.n1 I
5 ). F
(NId) IP2 -i- K30+ S
15+Zn2-I
B1 () ) and F5 (Native nutrient). The data revealed
that the variety BARI sharisa-15 gave higher no of seeds per siliqua. 1000 seed
weight and took highest days to 50% flowering and maturity than other variety.
On the oilier hand maximum number of' primaiy branches, siliqun length.
harvest index and oil eontenl were given by BARI sharisa-l2 .Another variety
BARI sharisa-9 gave highest number of siliquae per plant. seed yield and
harvest index. The highest seed yield and stayer yield was found with higher
dose of fertilizer in treatment
F1
(N10—P+ K
c(
i Zn.1
+ 132). Flic oil content
was found to he increased with decreasing fertilizer dose. The highest yield
(1773 kg/ha) and number of' siliqtia per plant were recorded in BARI sharisa-9
with the highest dose of chemical fertilizer (F
1
). But the highest number of
primary branches per plant. number of seeds per siliqua. 1000 seed weight and
stover yield were given by the variety BARI sharisa-15 with F
1
lertilizer.
